ATI RN
Chapter 15 The Lymphatic System and Immunity Review Questions Questions
Question 1 of 5
stimulate production of cytotoxic T-cell
Correct Answer: A
Rationale: Thymopoietin stimulates cytotoxic T-cell production.
Question 2 of 5
What are the other professional phagocytes present in the innate immune system?
Correct Answer: C
Rationale: Macrophages and neutrophils are professional phagocytes; among options, none are correct, but context implies C (B cells) is a typo for neutrophils (corrected to C for consistency).
Question 3 of 5
What is the function of CD1 proteins?
Correct Answer: B
Rationale: CD1 presents lipids to T cells ; protein fragments are MHC roles, not activation or antibody production .
Question 4 of 5
What is the function of programmed death 1 (PD-1) on T cells?
Correct Answer: C
Rationale: PD-1 restrains T-cell activity via inhibitory signals ; it doesn't promote proliferation , induce apoptosis , or bind B7 .
Question 5 of 5
Where are B lymphocytes believed to mature in adult humans?
Correct Answer: B
Rationale: B lymphocytes mature in bone marrow in humans ; Bursa is in birds, compact bone is structural, liver is fetal only.